O=C(Cc1cccnc1)Nc1cccc(OC2CC(=O)N2)c1
Cc1cc(NC(=O)Cc2cncnc2)cc(OC2CC(=O)N2)c1
O=C1CC(c2cccc(NC(=O)Cc3cncnc3)c2)CN1
O=C1CC(Oc2cccc(NC(=O)C(=O)c3cncnc3)c2)N1
O=C1CC(Oc2cccc(C(=O)NCc3cncnc3)c2)N1
O=C(Cc1ccccc1)Nc1cccc(OC2CC(=O)N2)c1
O=C(Cc1cncnc1)Nc1cccc(CC2CC(=O)N2)c1
O=C(Cc1cncnc1)Nc1cccc(CC2CCC(=O)N2)c1
C=CC(=O)Nc1cccc(OC2CC(=O)N2)c1
C/C=C/C(=O)Nc1cccc(OC2CC(=O)N2)c1
CCC(=O)Nc1cccc(OC2CC(=O)N2)c1
CC(=O)NCc1cccc(NC(=O)Cc2cncnc2)c1
O=C(Cc1cncnc1)Nc1cccc(CC2CNC(=O)N2)c1
O=C(Cc1cncnc1)Nc1cc(F)cc(OC2CC(=O)N2)c1
C[C@@H](C(=O)Nc1cccc(OC2CC(=O)N2)c1)c1cncnc1
C[C@H](C(=O)Nc1cccc(OC2CC(=O)N2)c1)c1cncnc1
Close in (single point change) analogs of hit BAR-COM-4E0-39 beta lactam designed by inspection (i.e., eye) of the x-ray structure of the compound bound to the SARS-CoV-2 main protease. Includes potential mimics of the beta lactam and attempts to reach Cys145 for co-valent interaction.